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<html>
<head>
<title>日期查找插件</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
</head>
<!-------------------------------->
<body bgcolor="#fef4d9" onLoad="setY()">
<SCRIPT LANGUAGE="JavaScript">
<!-- Begin
var months = new Array("January","February","March","April","May","June","July","August","September","October","November","December");
var days = new Array("星期日","星期一","星期二","星期三","星期四","星期五","星期六");
var mtend = new Array(31,28,31,30,31,30,31,31,30,31,30,31);
var opt = new Array("过去时间","将来时间");
function getDateInfo() {
var y = document.form.year.value;
var m = document.form.month.options[document.form.month.options.selectedIndex].value;
var d = document.form.day.options[document.form.day.options.selectedIndex].value;
var hlpr = mtend[m];
if (d < mtend[m] + 1) {
if (m == 1 && y % 4 == 0) { hlpr++; }
var c = new Date(y,m,d);
var dayOfWeek = c.getDay();
document.form.dw.value = days[dayOfWeek];
if(c.getTime() > new Date().getTime()) {
document.form.time.value = opt[1];
}
else {
document.form.time.value = opt[0];
}
}
else {
alert("这一天"+months[m]+" "+d+", "+y+"是不存在的.\n请重新选择.");
}
}
function setY() {
var y = new Date().getYear();
if (y < 2000) y += 1900;
document.form.year.value = y;
}
// End -->
</script>
<form name="form">
<p>日<select name="day" size="1">
<option selected value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
<option value="6">6</option>
<option value="7">7</option>
<option value="8">8</option>
<option value="9">9</option>
<option value="10">10</option>
<option value="11">11</option>
<option value="12">12</option>
<option value="13">13</option>
<option value="14">14</option>
<option value="15">15</option>
<option value="16">16</option>
<option value="17">17</option>
<option value="18">18</option>
<option value="19">19</option>
<option value="20">20</option>
<option value="21">21</option>
<option value="22">22</option>
<option value="23">23</option>
<option value="24">24</option>
<option value="25">25</option>
<option value="26">26</option>
<option value="27">27</option>
<option value="28">28</option>
<option value="29">29</option>
<option value="30">30</option>
<option value="31">31</option>
</select>月<select name="month" size="1">
<option selected value="0">January</option>
<option value="1">February </option>
<option value="2">March </option>
<option value="3">April </option>
<option value="4">May </option>
<option value="5">June </option>
<option value="6">July </option>
<option value="7">August </option>
<option value="8">September </option>
<option value="9">October </option>
<option value="10">November </option>
<option value="11">December </option>
</select>年<input type="text" name="year" size="4"> <input type="button"
value="看看这天的信息" name="gdi" onClick="getDateInfo()"></p>
<p>这里显示是星期几：<input type="text" name="dw" size="12">时间状态：<input type="text"
name="time" size="10"></p>
</form>
<div>巴黎接机网（www.balijieji.com）编辑收集提供</div>
</body>
</html>
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原文地址：http://www.cnblogs.com/zhaoguangxing/p/4448474.html
